Chev LS1 LS2 LS6 FAST LSX 92mm Black Intake Manifold Cathedral Port # FAST54039BChev LS1 LS2 LS6 FAST LSX 92mm Black Intake Manifold Cathedral Port # FAST54039B Intake Manifold, FAST LSX, Multi port, 92mm Bore, Polymer, Black, Runners, EGR, Chevy, 5. 7L, 6. 0L, Kit Fuel Injection Style: Multi port Basic Operating RPM Range: 1,800 6,000 Intake Section Included: Complete Throttle Body Bore Size: 92mm Engine Block Deck Height: Standard deck Injectors Included: No Multi Port Fuel Rails Included: No EGR: Yes Aftermarket Fuel Rail